Comparison of the ability of anthropometric indices to predict the risk of Diabetes Mellitus in South African males: SANHANES-1
OUTPUT TYPE: Journal Article
PUBLICATION YEAR: 2022
TITLE AUTHOR(S): M.D.Sekgala, R.Sewpaul, M.Opperman, Z.J.Mchiza
KEYWORDS: BODY MASS INDEX (BMI), DIABETES, SOUTH AFRICA, WEIGHT MANAGEMENT
DEPARTMENT: Public Health, Societies and Belonging (HSC)
Print: HSRC Library: shelf number 9812226
HANDLE: 20.500.11910/19294
URI: http://hdl.handle.net/20.500.11910/19294
If you would like to obtain a copy of this Research Output, please contact Hanlie Baudin at researchoutputs@hsrc.ac.za.
Abstract
This study aimed to assess the sensitivity of body mass index (BMI) to predict the risk of diabetes mellitus (DM) and whether waist circumference (WC), waist-to-hip (WHR) and waist-to height (WHtR) ratios are better predictors of the risk of DM than BMI in South African men aged 20 years and older. Data from the first South African National Health and Nutrition Examination Survey (SANHANES-1) were used. Overall, 1405 men who had valid HbA1c outcomes were included. The sensitivity, specificity, and optimal cut-off points for predicting DM were determined using the receiver operating characteristic (ROC) curve analysis. A total of 34.6% percent of the study participants were overweight/obese, while 10.5%, 10.4%, 36.6% and 61.0% had HbA1c, WC, WHR and WHtR above the normal reference ranges, respectively. Based on age-adjusted logistic regression analysis, the highest likelihood of DM was observed for those participants who had increased WC and WHtR (odds ratios [OR] were 6.285 (95% CI: 4.136-9.550; p < 0.001) and 8.108 (95% CI:3.721-17.667; p < 0.001)). The ROC curve analyses for WC, WHR, and WHtR displayed excellent ability to predict the risk of DM, with their areas under the curve (AUC) being 80.4%, 80.2% and 80.8%, respectively. The overall cut-off points to predict the risk of DM for WC, WHR, and WHtR were 88.95 cm, 0.92, and >0.54, respectively. The ROC analysis for BMI, on the other hand, showed acceptable ability to predict the risk of DM (AUC = 75.6%), with its cut-off point being 24.64 kg/m2. Even after stratifying the data by two age groups, WHtR remained a superior index to predict DM, especially in the younger age group. To conclude, no significant differences were observed between the AUC for BMI the AUCs for other indices. However, the AUCs for these indices showed significant excellent ability as opposed to the significant acceptable ability of BMI to predict DM in adult South African men.-
Related Research Outputs:
- Dietary, social, and environmental determinants of obesity in Kenyan women
- Residential mobility, socioeconomic context and body mass index in a cohort of urban South African adolescents
- Body mass index and waist circumference in patients with HIV in South Africa and associated socio-demographic, health related and psychosocial factors
- Sleep duration, sleep quality, body mass index, and waist circumference among young adults from 24 low- and middle-income and two high-income countries
- Understanding the relationship between socio-economic status, physical activity and sedentary behaviour, and Adiposity in young adult South African women using structural equation modelling
- Social and psychological predictors of body mass index among South Africans 15 years and older: SANHANES-1
- Eye care utilization among diabetics in the South African National Health and Nutrition Examination Survey (SANHANES-1): a cross-sectional study
- Perceptions of healthy eating, physical activity and weight control among a rural sample of black adolescents in South Africa: implications for health promotion
- Revisiting South African employment trends in the 1990s
- Sectoral elasticity of substitution and returns to scale in South Africa
- Exchange rates and unemployment
- Employment creation and economic growth in South Africa: an analysis of manufacturing and services
- Quantifying the outsourcing of employment from manufacturing to services
- Infection control practices in public dental care services: findings from one South African Province
- Phaphama (brief HIV risk reduction intervention for sexually transmitted infection clinic patients who use alcohol)
- Post-school private education and training providers in South Africa: What works!
- Weight gain in the first two years of life is an important predictor of schooling outcomes in pooled analyses from five birth cohorts from low- and middle-income countries
- Perceptions about body image and sizes among black African girls living in Cape Town
- Relationship between body mass index and mortality in adults on maintenance hemodialysis: a systemic review*
- Accuracy of reporting food energy intake: influence of ethnicity and body weight status in South African women